{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-1AU04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-1AU04","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-1AU04","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1AU04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1034-1AU04, S2 frame, screw-type terminals, 29 A AC-4 at 400 V, 15 kW AC-2, DIN EN 50022 rail mount.","salesMarkdown":"That's normal for this class — the panel enclosure provides the overall protection. The headline motor-switching number is 29 A at 400 V in AC-4 duty — that's the severe inrush from plugging or inching a motor, not just running it. If your application involves frequent reversing or jogging, this is the rating that governs contactor life. For standard motor starting (AC-3), the contactor handles 15 kW at 400 V, and it's rated 18.5 kW at 500 V and 10 kW at 690 V. The AC-2 rating (slip-ring motor starting) is 15 kW at 400 V. Auxiliary contact ratings cover 24 V at 10 A, 60 V at 2 A, 110 V at 1 A, 230 V at 6 A, and 400 V at 3 A — enough for most control-circuit loads, but check your coil inrush if you're driving multiple contactors from one aux. No UL or CSA marks are listed in the spec record, so verify local code acceptance if your panel requires those approvals. Main circuit terminals accept solid wire from 2x 0.5 to 1.5 mm² up to 2x 0.75 to 4 mm², and stranded wire from 2x 0.75 to 25 mm². Minimum cross-section at 40 °C is 16 mm². That covers most panel wiring up to about 6 AWG.","metaTitle":"Siemens 3RT1034-1AU04 SIRIUS Power Contactor, 29 A AC-4, S2","metaDescription":"Siemens 3RT1034-1AU04 SIRIUS power contactor. 29 A AC-4 at 400 V, 15 kW AC-2, 18.5 kW at 500 V. Screw terminals, DIN rail mount. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"164 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"55 mm","at AC":"7 ... 20 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","at 50 Hz":"0.8 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20","1 Rated Value":"50 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 200 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S2","Solid Or Stranded":"2x (0.75 ... 16 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"240 V","at 500 V rated value":"18.5 kW","at 690 V rated value":"10 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"15 kW","at AC-4 at 400 V rated value":"29 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"16 mm²","at 60 °C minimum permissible":"10 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"18 kW","at 690 V at 60 °C rated value":"54 kW","at AWG cables for main contacts":"2x (18 ... 2)","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 63 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 125 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Thermal Short-Time Current Limited To 10 S":"320 A","Finely Stranded Without Core End Processing":"2x (0.75 ... 16 mm²)","apparent holding power of magnet coil at AC":"9.7 VA","apparent pick-up power of magnet coil at AC":"104 VA","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.78","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.42","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=491118&mlfb=3RT1034-1AU04","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1AU04/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RT1034-1AU04?","answer":"The depth is 164 mm. Overall dimensions are 55 mm wide by 112 mm tall by 164 mm deep, S2 frame size."},{"question":"What wire sizes does the 3RT1034-1AU04 accept?","answer":"Solid wire: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², max 2x 0.75 to 4 mm². Stranded wire: 2x 0.75 to 25 mm². Minimum cross-section at 40 °C is 16 mm²."},{"question":"Where can I buy the 3RT1034-1AU04?","answer":"We source and quote this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures are listed here."},{"question":"What compliance documentation does Siemens provide for 3RT1034-1AU04?","answer":"The substance prohibition date of 05/01/2012 indicates RoHS compliance. No UL or CSA marks are listed in the spec record, so verify local code acceptance if those approvals are required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-1AU04","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RT1034-1AU04 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}